h(x) = x^2 + sin(x)

Quadratic Function: A polynomial function with degree two. In h(x), x^2 is the quadratic term.

Trigonometric Function: A mathematical function that relates angles to the ratios of sides in a right triangle. In h(x), sin(x) is the trigonometric term.

Periodicity: The property of a function that repeats its values at regular intervals. For h(x) = x^2 + sin(x), the sinusoidal term introduces periodic behavior, causing the function to repeat itself over specific intervals.